Liquid fuel vaporization combustion device

Abstract

The utility model relates to a liquid fuel vaporization combustion device, belongs to the technical field of kitchen ware, and provides an improvement scheme aiming at the problems that a traditional device is low in fuel vaporization efficiency, uneven in air distribution, dependent on external oil supply, external long-term heating gasification and the like. The device comprises a lower seat, an upper seat, an oil supply assembly, a multi-stage vaporization assembly and a heating ignition device, the oil supply assembly conveys fuel through the inner pipe, air is introduced into the outer pipe, and the fuel is evenly dispersed to the surface of the vaporization assembly through the oil distribution cap. The vaporization assembly is of a spiral or vertical vaporization core structure and is combined with a flat plate, a barrel-shaped vaporization felt and a turnup vaporization felt to form a multi-stage vaporization path, and non-vaporized fuel flows to the turnup vaporization felt through an oil storage tank to be subjected to secondary treatment. The heating ignition device directly heats the vaporization felt through the ignition plug, and instantaneous vaporization ignition is achieved. The device supplies oxygen through cooperation of double air inlet holes and supplies oil through gravity self-flowing, solves the problems of incomplete vaporization, insufficient combustion, high energy consumption and the like, and has the characteristics of high fuel utilization rate, stable flame, low noise and low emission.

Description

TECHNICAL FIELD

[0001] The utility model relates to commercial or civilian kitchen utensil technical field, concretely relates to a liquid fuel gasification combustion device. BACKGROUND

[0002] The prior art conventional liquid fuel combustion device often has the following technical problems (such as Chinese patent number: CN202121107411.2, name: atomized fuel furnace end) :

[0003] 1. Low fuel gasification efficiency: the traditional device relies on electric heating or complex atomization structure, and fuel gasification is insufficient, which leads to incomplete combustion, serious carbon deposition, and carbon monoxide emission exceeding the standard, not meeting the environmental protection standard.

[0004] 2. Air distribution is uneven: the air inlet system is designed unreasonably, and the airflow distribution is unbalanced, which affects the mixing efficiency of air and fuel, causing unstable flame and low combustion efficiency.

[0005] 3. Dependence on external oil supply equipment: external pressure oil supply such as oil pump is needed, which leads to high noise, high energy consumption, and increases system complexity and maintenance cost.

[0006] 4. Energy consumption and heating speed problem: the electric heating device has high energy consumption and slow heating, which cannot meet the rapid ignition demand and affects the use efficiency.

[0007] 5. Ignition system redundancy: a separate ignition needle needs to be installed, which increases the manufacturing cost and energy consumption, and also increases the failure rate.

[0008] 6. Complex structure and difficult maintenance: the traditional device contains complex atomization structure or external long-term heating device, which leads to high maintenance frequency, high cost, and insufficient durability.

[0009] 7. Material performance limitation: the performance of some devices is insufficient in high-temperature resistance, and the thermal response is slow, which cannot adapt to the long-time high-temperature working demand in commercial scenarios.

[0010] These problems collectively lead to significant defects in efficiency, cost, environmental protection, and reliability of the traditional combustion device. UTILITY MODEL CONTENT

[0011] The utility model aims at the defects of the prior art, and provides a liquid fuel gasification combustion device. The following problems existing in the prior art are solved:

[0012] 1. Insufficient fuel gasification: the traditional device relies on long-term electric heating gasification or complex atomization structure, which leads to low fuel gasification efficiency, increased electric energy consumption, incomplete gasification, insufficient combustion, carbon deposition, and carbon monoxide emission exceeding the standard.

[0013] 2. Air distribution is uneven: the air inlet system is not reasonably designed, which leads to uneven airflow distribution, affecting the mixing efficiency of fuel and air, and unstable flame.

[0014] 3. Dependence on external oil supply equipment: external pressure oil supply such as oil pump is needed, which produces noise, high energy consumption, and increases system complexity and maintenance cost.

[0015] 4. Energy consumption and heating speed problem: traditional electric heating has high energy consumption and slow heating and ignition, which cannot meet the demand for rapid ignition.

[0016] 5. Ignition system redundancy: high-voltage igniters and ignition needles need to be installed separately, increasing cost and failure risk.

[0017] 6. Complex structure and difficult maintenance: traditional devices contain complex components, with high maintenance frequency and insufficient durability.

[0018] The technical scheme is: a liquid fuel vaporization combustion device, comprising a lower seat and an upper seat,

[0019] The lower seat is provided with an air inlet opening upwardly;

[0020] The upper seat is provided with an air inlet opening upwardly, and the top edge thereof is bent outwardly and extends in the horizontal direction, and the extension portion is overlapped with the top of the lower seat;

[0021] It also includes an oil supply assembly, a vaporization assembly, and a heating ignition device, wherein:

[0022] The oil supply assembly includes an inner tube vertically arranged for conveying liquid fuel and an outer tube connected to the air blower, the outer tube is sleeved outside the inner tube, and the outer tube penetrates and is fixed at the bottom of the upper seat;

[0023] The vaporization assembly includes a first vaporization felt, a second vaporization felt, a third vaporization felt, a vaporization channel, and a vaporization seat, the end of the inner tube and the outer tube is connected to the first vaporization felt, the lower part of the first vaporization felt is in contact with the vaporization plate, the vaporization plate is in contact with the vaporization channel, the vaporization seat includes an annular shell, the second vaporization felt is arranged in the annular shell, the vaporization channel is connected to the second vaporization felt, the air hole is arranged outside the annular shell, the second vaporization felt is in communication with the air hole, the third vaporization felt is arranged at the lower part of the vaporization seat, the inner tube and the outer tube jointly penetrate the annular shell and the third vaporization felt, the vaporization plate is fixedly connected with the vaporization seat, and the vaporization plate penetrates and is fixedly installed on the outer tube;

[0024] The heating ignition device, the heating ignition end of the heating ignition device is in contact with the third vaporization felt.

[0025] On the basis of the above technical scheme, further optimization is carried out, the outer side of the annular shell is provided with gear-shaped heat storage teeth, the outer side of the bottom of the annular shell is provided with an annular shell flange, the shell flange is upwardly folded to form a flange, and the flange and the annular shell form an oil storage groove therebetween, and the oil storage groove is provided with an upper and lower through oil drip hole.

[0026] On the basis of the above technical scheme, further optimization is carried out, the vaporization assembly further comprises a spiral vaporization core, the spiral vaporization core comprises a cylindrical core shell, the top of the core shell is fixed and sealed connected with the vaporization plate, at least one spiral vaporization channel is arranged on the outer side of the core shell, the second vaporization felt is a cylindrical vaporization felt, the cylindrical vaporization felt is wrapped around the outer part of the core shell, the annular shell wraps the cylindrical vaporization felt inside, the first vaporization felt is a flat plate vaporization felt, and the annular shell is provided with a vaporization cover covering the flat plate vaporization felt at the top.

[0027] On the basis of the above technical scheme, further optimization is carried out, at least one horizontal vaporization channel is arranged along the axis of the vaporization plate, the two ends of the horizontal vaporization channel are communicated with the upper ends of the spiral vaporization channels, an annular vaporization channel is arranged on the outer side of the core shell, the lower end of the spiral vaporization channel is communicated with the annular vaporization channel, a core flange is arranged around the bottom of the core shell, the cylindrical vaporization felt is arranged on the upper part of the core flange, and threads are arranged on the outer side of the core flange.

[0028] On the basis of the above technical scheme, further optimization is carried out, the first vaporization felt is a flat plate vaporization felt, the vaporization assembly further comprises a vertical vaporization core, the vertical vaporization core comprises an annular heat storage ring, the heat storage ring is arranged around the vaporization plate, and the height of the heat storage ring is not lower than the height of the flat plate vaporization felt, the upper part of the heat storage ring is provided with a vaporization cover covering the flat plate vaporization felt, the upper part of the annular shell is covered by the heat storage ring and the vaporization plate, the surface of the vaporization plate is provided with a plurality of vertical vaporization channels penetrating up and down, the bottom of the annular shell is provided with a vaporization bottom with a center being closed, the upper part of the vaporization bottom is provided with the second vaporization felt, the second vaporization felt is a flat vaporization felt, and the outer pipe penetrates through the flat vaporization felt and the vaporization bottom at the same time.

[0029] On the basis of the above technical scheme, further optimization is carried out, the outer side of the heat storage ring is provided with an annular and outwardly protruding corner, the vertical vaporization core is formed by stacking a plurality of vaporization plates, heat storage rings and flat plate vaporization felts up and down, and the positions of the vertical vaporization channels on the adjacent vaporization plates are staggered with each other.

[0030] On the basis of the above technical scheme, further optimization is carried out, the third vaporization felt is a turned edge vaporization felt, the heating ignition device is a silicon nitride ignition plug, the ignition plug is fixed at the bottom of the upper seat, and the heating ignition end thereof penetrates through the bottom of the upper seat and the turned edge vaporization felt at the same time.

[0031] On the basis of the above technical scheme, further optimization is carried out, the outer tube is internally provided with a necked portion, the inner diameter of the necked portion is smaller than that of other portions of the outer tube, the inner tube is externally provided with a sealing convex portion, the sealing convex portion is correspondingly and sealingly installed in the necked portion, the upper portion of the necked portion and the surface of the outer tube are provided with an air inlet hole, and the air inlet hole is arranged on the outer tube of the lower portion of the upper seat and is used for being communicated with the air inlet.

[0032] On the basis of the above technical scheme, further optimization is carried out, the surface of the extension of the top of the upper seat is uniformly distributed with a plurality of upper air holes, and the outer side of the upper seat is uniformly distributed with a plurality of side air holes.

[0033] On the basis of the above technical scheme, further optimization is carried out, the top end of the inner tube is provided with an oil distribution cap, the oil distribution cap is fixedly installed at the top of the inner tube, the oil distribution cap is arranged in an umbrella shape, the diameter of the oil distribution cap is greater than that of the outer tube, the installation height of the bottom of the oil distribution cap is higher than the height of the flat plate vaporization felt, and the vaporization cover covers the oil distribution cap.

[0034] Compared with the prior art, the utility model has the following advantages:

[0035] 1. Efficient fuel vaporization and multiple vaporization path optimization

[0036] Dual-mode vaporization design:

[0037] Spiral vaporization core: fuel flows through the spiral vaporization channel, combined with multi-layer vaporization plates and cylindrical vaporization felt adsorption heating, and the fuel that is not completely vaporized flows to the turned edge vaporization felt for secondary combustion, ensuring complete vaporization of the fuel and avoiding the problem of carbon deposition.

[0038] Vertical vaporization core: fuel permeates through the vertical vaporization channel and multi-layer vaporization plates, forming a continuous vaporization path, which can be flexibly adjusted according to different power requirements, realizing modular architecture and significantly improving vaporization efficiency.

[0039] Sintered felt and ignition plug cooperative heating ignition: metal fiber sintered felt quickly absorbs fuel through capillary action, and a silicon nitride ignition plug directly heats and ignites the sintered felt, realizing instantaneous fuel vaporization and ignition, greatly improving combustion efficiency, and strictly meeting national standards for carbon monoxide emissions.

[0040] 2. Three-dimensional air distribution system

[0041] Dual air inlet hole cooperative oxygen supply:

[0042] Outer tube air inlet: Introduces external airflow into the inner / outer tube cavity, effectively reducing the working temperature of the oil supply device, prolonging the service life of the assembly, and using the strong heat conduction of the tube wall to enhance the heat exchange efficiency of the vaporization area.

[0043] Upper seat double air holes: Work with the side air holes to provide uniform oxygen supply to the combustion chamber, ensuring flame stability and complete combustion.

[0044] 3. Pump-free self-flow oil supply and oil distribution optimization

[0045] Gravity self-flow oil supply: Fuel flows into the oil distribution cap by gravity from a high position, eliminating the traditional oil pump structure, significantly reducing operating noise (measured below 70db) and energy consumption, while simplifying system complexity.

[0046] Precise distribution of oil distribution cap: The oil distribution cap is installed on the upper part of the inner tube, which uniformly disperses fuel to the surface of the vaporization felt through the umbrella-shaped design. The air blown by the air inlet hole reduces the temperature and uniformly disperses the air, avoiding uneven distribution of air around the vaporization felt and fuel on the vaporization felt, improving vaporization efficiency and preventing fuel from flowing back into the outer tube.

[0047] 4. Integrated ignition and rapid response

[0048] Integrated ignition system: The silicon nitride ignition plug is directly embedded in the combustion chamber and tightly contacts the sintered felt, eliminating the traditional ignition needle structure, with rapid ignition response and extremely low failure rate.

[0049] Low-power direct-current power supply: The silicon nitride ignition plug is adapted to the 12V / 24V safety voltage of commercial scenarios, with long service life and significantly reduced energy consumption, improving use safety and heating to 1000℃ in a short time, meeting the needs of vaporization ignition. After ignition, the ignition plug is powered off, eliminating the need for long-term heating and greatly reducing energy consumption.

[0050] 5. High-temperature resistance and modular maintenance design

[0051] High-temperature resistant materials: The metal sintered felt has excellent high-temperature resistance and can work stably in extreme temperature environments for a long time, ensuring device durability.

[0052] Modular quick-release structure: The oil supply device, sintered felt, and other core components are connected by threads or buckles, supporting quick disassembly and replacement, significantly reducing maintenance cost and time.

[0053] 6. Comprehensive performance and environmental advantages

[0054] High-efficiency combustion and energy saving: Fuel utilization rate is significantly improved, thermal efficiency is optimized, fully meeting the high-intensity use requirements of commercial scenarios.

[0055] Structural simplicity and economy: By simplifying the design to reduce redundant components, reduce manufacturing costs and maintenance frequency.

[0056] Environmental compatibility: The device is compatible with a variety of liquid fuels such as ethylene glycol, white oil, liquid wax, and methanol. The combustion process is clean and efficient, meeting national environmental standards and reducing harmful gas emissions.

[0057] Summary of technical advantages:

[0058] The device achieves efficient, quiet, and low-consumption combustion of liquid fuels through three core technologies: hierarchical vaporization path, self-flow oil supply system, and integrated ignition design, combined with high-temperature-resistant materials and modular architecture. Its structure is simple, maintenance is convenient, and it is suitable for high-intensity scenarios such as commercial, domestic kitchens, and industrial heating, with excellent economic benefits and environmental performance. BRIEF DESCRIPTION OF DRAWINGS

[0059] Figure 1 is a perspective view of the present utility model;

[0060] Figure 2 is a cross-sectional view of embodiment 1 of the present utility model;

[0061] Figure 3 is a perspective cross-sectional view of embodiment 1 of the present utility model;

[0062] Figure 4 is a top view of the vaporization assembly of embodiment 1 of the present utility model;

[0063] Figure 5 is a half cross-sectional view of the vaporization assembly of embodiment 1 of the present utility model;

[0064] Figure 6 is a half cross-sectional view of the oil supply assembly of the present utility model;

[0065] Figure 7 is an exploded view of the vaporization assembly of embodiment 1 of the present utility model;

[0066] Figure 8 is a perspective view of the vaporization seat of embodiment 1 of the present utility model;

[0067] Figure 9 is a perspective view of the spiral vaporization core of embodiment 1 of the present utility model;

[0068] Figure 10 is a perspective view of the vaporization assembly of embodiment 2 of the present utility model;

[0069] Figure 11 is a perspective cross-sectional view of embodiment 2 of the present utility model;

[0070] Figure 12is a half sectional view of the vaporization assembly of the embodiment 2 of the utility model;

[0071] Figure 13 is the explosion view of the vaporization assembly of the embodiment 2 of the utility model;

[0072] Figure 14 is the perspective view of the vertical vaporization core of the embodiment 2 of the utility model;

[0073] Figure 15 is the perspective view of the vaporization seat of the embodiment 2 of the utility model.

[0074] Wherein, 1, vaporization assembly, 101, vaporization cover,

[0075] 102, vaporization seat, 1020, fire hole, 1021, heat storage tooth, 1022, oil storage groove, 1023, oil drop hole, 1024, vaporization bottom,

[0076] 103, cylindrical vaporization felt,

[0077] 104, spiral vaporization core, 1041, core shell, 1042, core body flange, 1043, horizontal vaporization channel, 1044, spiral vaporization channel, 1045, annular vaporization channel,

[0078] 105, flat plate vaporization felt,

[0079] 106, vertical vaporization core, 1061, vertical vaporization channel, 1062, heat storage ring,

[0080] 107, vaporization plate,

[0081] 108, plane vaporization felt,

[0082] 109, vaporization cavity;

[0083] 2, upper seat, 200, combustion chamber, 201, side gas hole, 202, upper gas hole;

[0084] 3, lower seat, 300, air inlet;

[0085] 4, oil outlet assembly, 401, inner tube, 4011, sealing convex part, 402, outer tube, 4020, air inlet hole, 403, nut, 404, oil distribution cap;

[0086] 5, flange vaporization felt;

[0087] 6, ignition plug. DETAILED DESCRIPTION

[0088] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments.

[0089] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0090] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0091] Embodiment 1: Spiral vaporization core structure

[0092] Structure description:

[0093] As shown in Figures 1 to 9 , the liquid fuel vaporization combustion device of the present embodiment includes a lower seat 3, an upper seat 2, an oil supply assembly 4, a vaporization assembly 1 and a heating ignition device 6.

[0094] 1. Lower seat and upper seat structure:

[0095] The lower seat 3 is arranged with the opening upward, and a circular air inlet 300 is formed on the outside thereof for introducing external air.

[0096] The upper seat 2 is arranged with the opening upward, and the top edge thereof is outwardly horizontally bent to form an extension portion which is overlapped with the top of the lower seat 3, and the space inside the upper seat forms a combustion chamber 200. A plurality of gas holes 202 are arranged on the surface of the extension portion, and a plurality of side gas holes 201 are arranged on the outer side of the upper seat 2 to cooperatively provide combustion-supporting oxygen.

[0097] 2. Oil supply assembly 4:

[0098] The oil supply assembly 4 includes a fuel inner tube 401 arranged vertically and an air outer tube 402 arranged outside the fuel inner tube 401. The outer tube 402 penetrates the bottom of the upper seat 2 and is fixed by a nut 403.

[0099] The outer tube 402 is internally provided with a necked-down portion, and the inner tube 401 is externally provided with a sealing protrusion 4011 corresponding to the necked-down portion, and the two form a sealed cavity. The outer tube 402 is provided with an air inlet hole 4020 above the necked-down portion, which is in communication with the air inlet 300 of the lower seat, and air enters the cavity between the outer tube and the inner tube through the air inlet hole 4020.

[0100] The inner tube 401 is provided with an umbrella-shaped oil distribution cap 404 at the top end, which has a larger diameter than the outer tube 402, and is used to uniformly distribute fuel to the surface of the vaporization assembly 1, guide air to reduce the temperature of the oil distribution cap 404, and prevent fuel from flowing back into the outer tube 402.

[0101] 3. The vaporization assembly 1:

[0102] First-stage vaporization: fuel flows into the flat vaporization felt 105 (first vaporization felt) through the oil distribution cap 404, and is adsorbed by capillary action.

[0103] Second-stage vaporization: the lower part of the flat vaporization felt 105 is in contact with the vaporization plate 107, and the vaporization plate 107 is provided with a horizontal vaporization channel 1043 along the axis, through which fuel flows into the spiral vaporization channel 1044 of the spiral vaporization core 104. The outer part of the core shell 1041 of the spiral vaporization core 104 is wrapped with a cylindrical vaporization felt 103, and fuel is further adsorbed and vaporized here.

[0104] Third-stage vaporization: the fuel that is not completely vaporized flows into the oil storage groove 1022 of the vaporization seat 102 through the annular vaporization channel 1045, and drops into the flange vaporization felt 5 (third vaporization felt) through the oil dripping hole 1023. The vaporization seat 102 is externally provided with gear-shaped heat storage teeth 1021 to enhance the heat radiation efficiency.

[0105] 4. Heating ignition device 6:

[0106] The silicon nitride ignition plug 6 is embedded in the bottom of the upper seat 2, and the heating ignition end thereof penetrates and directly contacts the flange vaporization felt 5, thereby achieving instantaneous heating ignition.

[0107] Working principle of embodiment 1:

[0108] First start, the fan starts to work, air from the air inlet 300 into the lower seat 3 inside, a part of the air by the air inlet hole 4020 on the outer tube 402 into the cavity between the outer tube 402 and the inner tube 401, air blowing to the bottom of the oil separation cap 404, the air dispersion cap 404 will be dispersed, air into the vaporization cavity 109. At this time the liquid fuel from the inner tube 401, along the upper surface of the oil separation cap 404 to the flat vaporization felt 105, flat vaporization felt 105 will quickly absorb the liquid fuel. After saturation, a part of the flow into the horizontal vaporization channel 1043 on the vaporization plate 107, by the spiral vaporization channel 1044 into the annular vaporization channel 1045, and then to the cylindrical vaporization felt 103; another part of the direct flow to the cylindrical vaporization felt 103. Finally, the fire hole 1020 flow out, along the outer wall of the vaporization seat 102 into the oil storage groove 1022, and then by the oil drop hole 1023 to the flange vaporization felt 5. At this time the ignition plug 6 has been heated to the flange vaporization felt 5, the liquid fuel is instantaneously vaporized and ignited, and reaches the ignition point in the combustion chamber 200. Another part of the air by the upper air hole 202, side air hole 201 blowing to the flame combustion.

[0109] Normal working, the flame of the flange vaporization felt 5 heats the upper vaporization assembly 1, that is, the vaporization plate 107, the spiral vaporization core 104, the flat vaporization felt 105, and the cylindrical vaporization felt 103 are heated. The liquid fuel from the inner tube 401 flows to the flat vaporization felt 105 and the cylindrical vaporization felt 103 to be vaporized, and is sprayed out by the fire hole 1020 and burned. The liquid fuel that is not vaporized flows along the spiral vaporization channel 1044 to the fire hole 1020, and is further vaporized under the high temperature of the spiral vaporization core 104, and is sprayed out by the fire hole 1020 and burned. If there is liquid fuel that is not vaporized, it will flow into the oil storage groove 1022 from the fire hole 1020, flow to the flange vaporization felt 5 from the oil drop hole 1023, and be vaporized and burned under the high temperature of the flange vaporization felt 5, realizing the cycle of “burning - self-vaporization - self-burning”. In normal working, the flange vaporization felt 5 serves as the last vaporization and combustion barrier. After the fire, the ignition plug is in a closed state.

[0110] Example 2: Vertical vaporization core structure

[0111] Structure description:

[0112] As shown in Figure 1 , Figure 6 , Figures 10-15 , the main difference between this embodiment and example 1 is the design of the vaporization assembly, which adopts a vertical stacked vaporization structure.

[0113] Vertical vaporization core 106:

[0114] The vaporization plate 107, the heat storage ring 1062 and the flat vaporization felt 105 are stacked in layers.

[0115] The heat storage ring 1062 is provided with protruding edges on the outside to enhance heat conduction efficiency. The vaporization cover 101 covers the flat vaporization felt 105 to prevent fuel from splashing.

[0116] The flat vaporization felt 108:

[0117] The vaporization base 102 is provided with a vaporization bottom 1024 at the bottom and a flat vaporization felt 108 (second vaporization felt) at the top, which is used to absorb and vaporize the fuel flowing down from the vertical vaporization channels 1061.

[0118] Working principle of the second embodiment:

[0119] When the device is started for the first time, the fan starts to work, air enters the inside of the lower seat 3 from the air inlet 300, part of the air enters the cavity between the outer tube 402 and the inner tube 401 through the air inlet hole 4020 on the outer tube 402, and the air blows towards the bottom of the oil separation cap 404, which disperses the air, and the air enters the vaporization cavity 109. At this time, the liquid fuel flows out of the inner tube 401, flows along the upper surface of the oil separation cap 404 to the upper flat vaporization felt 105, and the upper flat vaporization felt 105 quickly absorbs the liquid fuel. After the liquid fuel is saturated, it flows to the lower flat vaporization felt 105 through the vertical vaporization channels 1061 on the vaporization plate 107, and finally flows to the flat vaporization felt 108, which absorbs the liquid fuel and then flows out of the fire hole 1020, flows along the outer wall of the vaporization seat 102 into the oil storage groove 1022, and then flows to the flange vaporization felt 5 through the oil dripping hole 1023. At this time, the ignition plug 6 has heated the flange vaporization felt 5, and the liquid fuel is instantly vaporized and ignited, and after reaching the ignition point, it burns in the combustion chamber 200. Another part of the air blows towards the flame through the upper air hole 202 and the side air hole 201.

[0120] When the device is working normally, the flame heats the upper vaporization assembly 1, i.e. the vaporization bottom 1024, the vaporization plate 107 and the heat storage ring 1062, the vaporization bottom 1024 heats the flat vaporization felt 108, and the vaporization plate 107 heats the flat vaporization felt 105. The liquid fuel flowing out of the inner tube 401 is vaporized by the flat vaporization felt 105 and the flat vaporization felt 108, and then is sprayed out of the air hole 1020 and burns. If there is unvaporized liquid fuel, it will flow into the oil storage groove 1022 through the fire hole 1020, flow to the flange vaporization felt 5 through the oil dripping hole 1023, and be vaporized and burned under the high temperature of the flange vaporization felt 5, realizing the cycle of burning-vaporization-burning. When the device is working normally, the flange vaporization felt 5 serves as the last barrier for vaporization and burning. After the fire is started, the ignition plug is in a closed state.

[0121] Technical effects:

[0122] The utility model discloses through spiral or vertical multistage vaporization path, self -flow oil supply and integration ignition design, realize fuel efficient vaporization and clean combustion. Modular structure supports quick maintenance, and high temperature resistant material ensures long -term stability, is applicable to commercial kitchen and other high -intensity scene. The device is compatible with glycol, white oil, liquid wax, methanol and a variety of liquid fuel. In the above two structures, spiral vaporization core 104 is applicable to high -power demand, and its structure is compact, and vaporization effect is good, vertical vaporization core 106 is convenient for dismounting maintenance, and the layer number of vertical vaporization core can be set arbitrarily, that is, according to the combustion power required, the vaporization amount is matched. Its vaporization channel is not limited to spiral, cross, annular (such as Figure 9 Indicated), can also change other shapes that can realize its vaporization effect.

[0123] Vaporization felt characteristic application:

[0124] Water absorption and vaporization: vaporization felt is also known as sintered felt, usually formed by metal fiber material through high-temperature sintering treatment, mainly based on its porous structure and surface tension effect, capillary action. It has a large number of micro-pores, which provide storage space for liquid fuel. When liquid fuel comes into contact with vaporization felt, the surface tension of the liquid fuel will promote water to penetrate into these pores, thereby achieving the effect of water storage. Capillary action refers to the phenomenon of wetting liquid rising in fine tubes. Due to the porous structure and hydrophilic material of the vaporization felt, water molecules will spontaneously infiltrate into the vaporization felt, exhibiting strong water absorption capacity. Capillary action causes liquid molecules to rise along the small pores inside the vaporization felt until equilibrium is reached. The porosity of the vaporization felt in the device is >60%, and the pore size is 5-20μm. The vaporization felt adsorbs fuel through its porous structure, and after the silicon nitride ignition plug 6 is heated, the fuel rapidly vaporizes and ignites, avoiding the problem of carbon deposition caused by direct combustion of liquid fuel.

[0125] High temperature resistance and rapid response: vaporization felt can withstand temperatures above 1200°C, has small thermal inertia, and rapidly transfers heat to fuel after heating, shortening the ignition time.

[0126] Strong cold and hot impact resistance: vaporization felt can remain stable under extreme temperature changes and is not prone to deformation or damage.

[0127] Complete combustion radiation: vaporization felt can completely radiate heat during combustion, improving energy utilization efficiency.

[0128] The above-mentioned vaporization felt characteristics and applications relate to the flat vaporization felt 105, cylindrical vaporization felt 103, flat vaporization felt 108, and flanged vaporization felt 5 mentioned in the device.

[0129] Effect verification: the device is tested, greatly improves the combustion efficiency, the carbon monoxide emission is less than 50mg / m³, meets the national standard, the noise is reduced to below 70dB, and no oil pump is needed, no long-term heating is needed, and the energy consumption is greatly reduced.

[0130] The above examples are only examples, and those skilled in the art can make equivalent substitutions on the component size, material or connection mode according to the actual needs, and these modifications shall fall within the protection scope of the utility model.

Claims

1. A liquid fuel vaporization combustion device, comprising a lower seat and an upper seat, the lower seat is upwardly open and has an air inlet on the outer side; the upper seat is upwardly open and has a top edge bent outwardly and extended horizontally, the extended part is overlapped with the top of the lower seat, characterized in that: it further comprises an oil supply assembly, a vaporization assembly and a heating ignition device, wherein: the oil supply assembly comprises a vertical inner pipe for conveying liquid fuel and an outer pipe connected with the air cavity, the outer pipe is sleeved on the outer side of the inner pipe and fixed on the bottom of the upper seat; the vaporization assembly comprises a first vaporization felt, a second vaporization felt, a third vaporization felt, a vaporization channel and a vaporization seat, the end of the inner pipe and the outer pipe is connected with the first vaporization felt, the lower part of the first vaporization felt is in contact with a vaporization plate, the vaporization plate is in contact with the vaporization channel, the vaporization seat comprises an annular shell, the second vaporization felt is arranged in the annular shell, the vaporization channel is connected with the second vaporization felt, the outer side of the annular shell is provided with air holes, the second vaporization felt is connected with the air holes, the third vaporization felt is arranged on the lower part of the vaporization seat, the inner pipe and the outer pipe are penetrated through the annular shell and the third vaporization felt, the vaporization plate is fixedly connected with the vaporization seat, and the vaporization plate is penetrated through and fixedly installed on the outer pipe; the heating ignition device is in contact with the third vaporization felt at the heating end.

2. A liquid fuel vaporizing combustion apparatus according to claim 1, characterized by: the outer side of the annular shell is provided with gear-shaped heat storage teeth, the bottom of the annular shell is provided with an annular shell flange, the shell flange is upwardly folded to form a flange, and the flange and the annular shell form an oil storage groove, and the oil storage groove is provided with oil dripping holes penetrating through the upper and lower parts.

3. A liquid fuel vaporizing burner as defined in claim 2, wherein: the vaporization assembly further comprises a spiral vaporization core, the spiral vaporization core comprises a cylindrical core shell, the top of the core shell is fixedly and sealingly connected with the vaporization plate, at least one spiral vaporization channel is arranged on the outer side of the core shell, the second vaporization felt is a cylindrical vaporization felt, the cylindrical vaporization felt is wrapped around the outer part of the core shell, the annular shell wraps the cylindrical vaporization felt inside, the first vaporization felt is a flat plate vaporization felt, and the annular shell is provided with a vaporization cover covering the flat plate vaporization felt on the top.

4. A liquid fuel vaporizing burner as claimed in claim 3, wherein: at least one horizontal vaporization channel is arranged along the axis of the vaporization plate, the two ends of the horizontal vaporization channel are connected with the upper ends of the spiral vaporization channels, an annular vaporization channel is arranged on the outer side of the core shell, the lower ends of the spiral vaporization channels are connected with the annular vaporization channel, a core flange is arranged on the bottom of the core shell, the cylindrical vaporization felt is arranged on the upper part of the core flange, threads are arranged on the outer side of the core flange, and the spiral vaporization core is fixedly connected with the vaporization seat through the threads.

5. A liquid fuel vaporizing burner apparatus according to claim 1, wherein: The first vaporization felt is a flat vaporization felt, the vaporization assembly further comprises a vertical vaporization core, the vertical vaporization core comprises a ring-shaped heat storage ring, the heat storage ring is arranged around the vaporization plate, the height of the heat storage ring is not less than the height of the flat vaporization felt, the upper part of the heat storage ring is provided with a vaporization cover covering the flat vaporization felt, the upper part of the ring-shaped shell is covered by the heat storage ring and the vaporization plate, the surface of the vaporization plate is provided with a plurality of vertical vaporization channels penetrating up and down, the bottom of the ring-shaped shell is provided with a vaporization bottom closing the center thereof, the upper part of the vaporization bottom is provided with the second vaporization felt, the second vaporization felt is a flat vaporization felt, and the outer pipe simultaneously penetrates the flat vaporization felt and the vaporization bottom.

6. A liquid fuel vaporizing burner apparatus according to claim 5, wherein: The outer side of the heat storage ring is provided with an annular and outwardly protruding edge, the vertical vaporization core is formed by stacking the vaporization plate, the heat storage ring and the flat vaporization felt up and down, and the vertical vaporization channels on the adjacent vaporization plates are arranged staggered.

7. A liquid fuel vaporizing burner as defined in claim 1 wherein: The third vaporization felt is a flange vaporization felt, and the heating device is a silicon nitride ignition plug, the ignition plug is fixed to the bottom of the upper seat, and the heating ignition end of the ignition plug simultaneously penetrates the bottom of the upper seat and the flange vaporization felt.

8. A liquid fuel vaporizing burner as defined in claim 1, wherein: The outer pipe is internally provided with a necked portion, the inner diameter of the necked portion is smaller than the inner diameter of other portions of the outer pipe, the inner pipe is externally provided with a sealing protrusion, the sealing protrusion is correspondingly and sealingly installed in the necked portion, the surface of the outer pipe and the upper part of the necked portion are provided with an air inlet hole, and the air inlet hole is arranged on the outer pipe of the lower part of the upper seat and is used for being communicated with the air inlet.

9. A liquid fuel vaporizing burner apparatus according to any one of claims 1 to 8, wherein: The surface of the extension of the top of the upper seat is uniformly provided with a plurality of upper air holes, and the outer side of the upper seat is uniformly provided with a plurality of side air holes.

10. A liquid fuel vaporizing burner apparatus according to claim 3 or 5, wherein: The top end of the inner pipe is provided with an oil distribution cap, the oil distribution cap is fixedly installed on the top of the inner pipe, the oil distribution cap is in an umbrella shape, the diameter of the oil distribution cap is greater than the diameter of the outer pipe, the installation height of the bottom of the oil distribution cap is higher than the height of the flat vaporization felt, and the vaporization cover covers the oil distribution cap.

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